Move media/audio files into media namespace

media/audio/linux/alsa_input.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "media/audio/linux/alsa_input.h"
 
 #include "base/basictypes.h"
 #include "base/bind.h"
 #include "base/logging.h"
 #include "base/message_loop.h"
 #include "base/time.h"
 #include "media/audio/audio_manager.h"
 #include "media/audio/linux/alsa_output.h"
 #include "media/audio/linux/alsa_util.h"
 #include "media/audio/linux/alsa_wrapper.h"
 #include "media/audio/linux/audio_manager_linux.h"
 
+namespace media {
+
 static const int kNumPacketsInRingBuffer = 3;
 
 static const char kDefaultDevice1[] = "default";
 static const char kDefaultDevice2[] = "plug:default";
 
 const char* AlsaPcmInputStream::kAutoSelectDevice = "";
 
 AlsaPcmInputStream::AlsaPcmInputStream(AudioManagerLinux* audio_manager,
                                        const std::string& device_name,
                                        const AudioParameters& params,
@@ skipping 306 matching lines @@
     return 0.0;
   }
 
   return static_cast<double>(current_volume);
 }
 
 void AlsaPcmInputStream::HandleError(const char* method, int error) {
   LOG(WARNING) << method << ": " << wrapper_->StrError(error);
   callback_->OnError(this, error);
 }
+
+}  // namespace media